feat(billing): accept USDC stablecoin payments for credit packs via Stripe

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#76 创建于 2026年10月21日 0 条评论 0 个 reaction 已指派 0 人在 GitHub 查看

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还没有人认领这个 Issue。

评估

难度: 5/5
预计耗时: 一周以上
新手友好度: 35/100

Issue 类型: 功能
描述清晰度: 基本清楚
活跃度: 活跃
领域: backend, payments

调研方向

Start by reading frontend/src/features/billing/server/webhook.ts and the linked credit-pack work in #3 and #10; credit packs and the ledger are not implemented yet. Then verify Stripe’s current stablecoin availability, supported networks, and fees for the account and region. Done means a test-mode USDC credit pack is gated by an off-by-default flag and credits the ledger exactly once on webhook replay, with the unsupported cases documented.

由索引模型根据 Issue 内容生成。

描述

chain-integration enhancement payments tier-2

Summary

Add Stripe's stablecoin payment method to Checkout for one-off credit packs, next to the card flow already merged for subscriptions.

Estimated size: M

Motivation

Crypto-native users can pay without a card, and Stripe settles to our balance in USD, so no wallet custody or on-chain code is needed on our side.

Current state in this repo

Stripe subscriptions are merged (#42, part of #10): Better Auth Stripe plugin, signature-verified idempotent webhook in frontend/src/features/billing/server/webhook.ts.
No stablecoin or crypto payment code exists. Credit packs and the credit ledger (#3) are not implemented yet.

Proposal

Enable the crypto/stablecoin payment method in the Stripe account (Stripe documents this as public preview; confirm availability for our account and region first).
Checkout session for one-off credit packs with the stablecoin payment method; reuse the existing webhook claim/release idempotency and write a confirmed event to the ledger exactly once.
Gated by an env flag and off by default; test mode only.
Per Stripe's docs, disputes and manual capture are not supported and refunds are; design the credit flow around that (no authorize-then-capture reservations). Verify the supported networks and fees on the current docs page before building.

Acceptance criteria

A test-mode stablecoin purchase credits the ledger exactly once, even if the webhook is delivered twice.
The option is hidden when the flag is off.
We hold no wallet keys and store no payment details.
Unsupported cases (disputes, manual capture) are documented in the PR.

Out of scope

Stablecoin subscriptions (confirm support separately).
Tempo and the Machine Payments Protocol (#11).
Live-mode keys.

Technical notes and risks

Reference: https://docs.stripe.com/payments/stablecoin-payments

Dependencies

#3
#10 (credit-pack phase)

Testing plan

Webhook replay test; Stripe CLI manual script.

Part of #1 (see also #10). Ground rules for all issues in this roadmap are listed there (testnet-first, no secrets in the repo, chain logic behind the registry, tests and docs with every PR).

主要语言: Python
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更多 Python Issue

feat(billing): accept USDC stablecoin payments for credit packs via Stripe

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评估

调研方向

描述

Summary

Motivation

Current state in this repo

Proposal

Acceptance criteria

Out of scope

Technical notes and risks

Dependencies

Testing plan

环境准备

从这里开始

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